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Finding the Fourth Proportional to 157,647.40, 236,471.10 and 151,426.60

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Solution

The fourth proportional to 157,647.40, 236,471.10 and 151,426.60 is: 227,139.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,647.40 : 236,471.10 = 151,426.60 : x
  2. Step 2: Convert to fraction form
    157,647.40/236,471.10 = 151,426.60/x
  3. Step 3: Cross multiply
    157,647.40x = 236,471.10 × 151,426.60
  4. Step 4: Simplify right side
    157,647.40x = 35,808,014,671.26
  5. Step 5: Solve for x
    x = 35,808,014,671.26/157,647.40
  6. Step 6: Final answer
    x = 227,139.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.